2004-2007 Cadillac CTS-V Performance Mods Discussion, Pacesetter headers? in Cadillac CTS-V Series Forum - 2004 - 2007; I went with the armor coat. 40k miles and two salty winters in Pa and there is some pitting down ...

Re: Pacesetter headers?

Another difference between the OBX and the Pacesetter is the collector. OBX uses a 2.5 inch collector versus the 3.0 inch collector used by Pace Setter. Although that may not sound like much, the smaller OBX collector will only flow 60% of what the Pace Setter will flow. This reduces relative horsepower produced by the two type of headers on a stock engine and also limits the cam duration that can be used on an OBX-equipped motor without experiencing exhaust gas reversion. (Kooks of course, have equal-length primaries, the 3.0 inch collector, and are stainless steel.)

Re: Pacesetter headers?

Originally Posted by vcaddy06

If anyone could help me decide, that would be greatly appreciated. By the way, found a site selling OBX for under $500.

If you are referring to E-racingzone or any of the other places that sell the OBX NON-catted packages, they are back ordered direct from OBX and unsure as to when OBX is going to do another production run. Not sure on the availability of the catted setups. I would highly recommend Kook's over any of the others. That being said, I just went with armorcoated pacesetters for the simple fact that I didn't want to spend $1K+ on a set of headers that will be removed in a year when the turbos go on.

Another difference between the OBX and the Pacesetter is the collector. OBX uses a 2.5 inch collector versus the 3.0 inch collector used by Pace Setter. Although that may not sound like much, the smaller OBX collector will only flow 60% of what the Pace Setter will flow. This reduces relative horsepower produced by the two type of headers on a stock engine and also limits the cam duration that can be used on an OBX-equipped motor without experiencing exhaust gas reversion. (Kooks of course, have equal-length primaries, the 3.0 inch collector, and are stainless steel.)

Kooks also feature a venturi style design in the collector. Not sure of the pace setters or OBX have that feature. It is the spike between where the primaries meet the collector.